What Vitamin Deficiency Causes Longitudinal Ridges on Nails? An Expert Guide
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4 min read
Approximately 20% of people in the U.S. take a biotin supplement, a nutrient sometimes linked to nail health, but the question remains: what vitamin deficiency causes longitudinal ridges on nails? While often a harmless sign of aging, certain nutritional gaps can also contribute to these vertical lines. This guide explores the most common causes, focusing on key vitamin deficiencies and other underlying factors that can impact nail health.
